168361390080 has 1040 divisors, whose sum is σ = 670688778144. Its totient is φ = 40131624960.

The previous prime is 168361390079. The next prime is 168361390121. The reversal of 168361390080 is 80093163861.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1040).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 797921175 + ... + 797921385.

Almost surely, 2^168361390080 is an apocalyptic number.

168361390080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168361390080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335344389072).

168361390080 is an abundant number, since it is smaller than the sum of its proper divisors (502327388064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168361390080 is a wasteful number, since it uses less digits than its factorization.

168361390080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 168361390080 in words is "one hundred sixty-eight billion, three hundred sixty-one million, three hundred ninety thousand, eighty".